Blinkenshell T-shirt Design Contest

Someone asked me if it’s possible to buy a Blinkenshell T-shirt earlier today, this has not been available earlier but I think it’s a great idea. I’m not the best with graphical design however so I might need some help with creating a nice motif for the shirts (a cool tagline would also be nice!). If you have an idea and know your way around vector graphics please give it a try!